“primary standards of national defense”的概念、定义、翻译、参考文献-科学参考

单词	primary standards of national defense
释义	primary standards of national defense Encyclopedia 工学（计量）释 primary standards of national defense国防最高计量标准在国防军工系统中具有最高计量特性，由国家国防科技工业计量主管部门考核合格并授权在国防军工系统中进行量值传递的测量标准。
随便看	purely imaginary purely imaginary expression purely imaginary number purely imaginary quaternion purely imaginary time purely indecomposable group purely infinite von Neumann algebra purely inseparable element purely inseparable extension purely inseparable isogeny purely inseparable mapping purely inseparable morphism purely nondeterministic process purely periodic purely periodic decimal purely quadratic function purely random process purely scattering purely scattering atmosphere purely transcendental extension purely unrectifiable set pure magnesium pure mathematics pure metal resistance pastes pure morphism

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。